Examlex
Which of the following ratios measures the earnings of a company on each sales dollar?
Alternative Hypothesis
In statistical hypothesis testing, the hypothesis that suggests there is an effect or a difference, as opposed to the null hypothesis which suggests there is no effect or difference.
P-Value
The probability of obtaining test results at least as extreme as the results actually observed, assuming that the null hypothesis is correct.
Sign Test
A non-parametric test used to determine if there is a significant difference between paired observations.
Tied Pairs
Occurs when pairs of subjects have identical values for either the treatment or the control variable in matched-pairs experiments.
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